About the day » Thursday May 21, 1863Calender converter

• Adolph Beisser, Semarang
• Anna Maria Jacobsd Huizinga, Groningen, gr.nld († 1938)
• Aalbert Nab, Renkum († 1869)
• Aafje Schout, Volendam, Edam-Volendam, Noord-Holland, Nederland († 1933)
• Anje Knap, Oldehove († 1863)
• Adriana Lena Overbeeke, Ooltgensplaat, Zuid-Holland, Nederland († 1866)
• Annigje Wolters Oort, Giethoorn, Nederland
• Adriana Zwanenburg, Santpoort, Nederland
• Anna Maria Polman, Apeldoorn, Gelderland, Nederland
• Aartje Geertruida Rodijk, Apeldoorn († 1944)

• Arie van Donselaar (80), Langbroek
• Amelia Louisa de Wispelaere (0), Aardenburg, Zeeland, The Netherlands
• Adriana Okhuijsen (0), Abcoude-Baambrugge
• Arie van Donselaar (79), Langbroek
• Albertje ten Hoeve (60), Wanneperveen, Overijssel, Nederland
• Adriana Jacobus VRIENS (Vriens) (68), Rucphen,Noord-Brabant,NEDERLAND
• Anna Elisabeth OPSTEIJN (38), Culemborg, Gelderland, Nederland
• Albertus Stuber (33), Utrecht, Utrecht, NL
• Anne Wigram (67), Mark Hall, Latton, Essex, England
• Arie Voorzaat (1), Rotterdam

• 1850 » Giuseppe Mercalli, Italian priest and volcanologist († 1914)
• 1851 » Léon Bourgeois, French police officer and politician, 64th Prime Minister of France, Nobel Prize laureate († 1925)
• 1853 » Jacques Marie Eugène Godefroy Cavaignac, French politician († 1905)
• 1856 » José Batlle y Ordóñez, Uruguayan journalist and politician, President of Uruguay († 1929)
• 1860 » Willem Einthoven, Indonesian-Dutch physician, physiologist, and academic, Nobel Prize laureate († 1927)
• 1861 » Abel Ayerza, Argentinian physician and academic († 1918)
• 1863 » Archduke Eugen of Austria († 1954)
• 1864 » Princess Stéphanie of Belgium († 1945)
• 1873 » Hans Berger, German neurologist and academic († 1941)
• 1878 » Glenn Curtiss, American cyclist and engineer († 1930)

• 1844 » Giuseppe Baini, Italian priest and composer (b. 1775)
• 1858 » José de la Riva Agüero, Peruvian soldier and politician, 1st President of Peru and 2nd President of North Peru (b. 1783)
• 1862 » John Drew, Irish-American actor and manager (b. 1827)
• 1879 » Arturo Prat, Chilean lawyer and commander (b. 1848)
• 1894 » Émile Henry, French anarchist (b. 1872)
• 1894 » August Kundt, German physicist and academic (b. 1839)
• 1895 » Franz von Suppé, Austrian composer and conductor (b. 1819)
• 1901 » Joseph Olivier, French rugby player (b. 1874)
• 1911 » Williamina Fleming, Scottish-American astronomer and academic (b. 1857)
• 1915 » Leonid Gobyato, Russian general and engineer (b. 1875)

1. Jan
2. Johannes
3. Cornelis
4. Hendrik
5. Pieter
6. Willem
7. Gerrit
8. Jacob
9. Petrus
10. Jacobus
11. Adrianus
12. Dirk
13. Arie
14. Klaas
15. Gerardus
16. Hendrikus

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Adriana
7. Catharina
8. Hendrika
9. Grietje
10. Wilhelmina
11. Aaltje
12. Trijntje
13. Neeltje
14. Antje
15. Petronella
16. Jacoba

• Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
• The Netherlands had about 3.6 million citizens.
• January 26 » American Civil War: General Ambrose Burnside is relieved of command of the Army of the Potomac after the disastrous Fredericksburg campaign. He is replaced by Joseph Hooker.
• April 17 » American Civil War: Grierson's Raid begins: Troops under Union Army Colonel Benjamin Grierson attack central Mississippi.
• July 4 » American Civil War: The Army of Northern Virginia withdraws from the battlefield after losing the Battle of Gettysburg, signalling an end to the Confederate invasion of U.S. territory.
• August 17 » American Civil War: In Charleston, South Carolina, Union batteries and ships bombard Confederate-held Fort Sumter.
• September 8 » American Civil War: In the Second Battle of Sabine Pass, a small Confederate force thwarts a Union invasion of Texas.
• September 9 » American Civil War: The Union Army enters Chattanooga, Tennessee.

The temperature on May 21, 1863 was about 13.9 °C. The air pressure was 5 kgf/m² and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 49%.